Loom-shuttle spindle



(No Model.) I

J. M. CHENEY.

LOOM SHUTTLE SPINDLE Patented Dec. 11, 1888.

Masses N PEIERs PlMoUlhognbber. Wilhingion, 11c.

UNITED STATES PATENT OFFICE.

JOHN M. CHENEY, OF SOUTI-IBRIDGE, MASSACHUSETTS.

LOOM-SHUTTLE SPINDLE.

SPECIFICATION forming part of Letters Patent No. 394,458, dated December11, 1888.

Application filed March 27, 1888. Serial No. 268,699. (No model.)

To all whom it may concern.-

Be it known that I, JOHN M. CHENEY, of

following description, in connection with the accompanying drawings, isa specification, like letters on the drawings representing like parts.

In the employment of mule-cops on loomshuttle spindles as now made theyarn fails to unwind freely, and a considerable portion of the cop goesinto waste.

The mule-spindle is tapering and the coptube is uniformly cylindrical,and as a result thereof the yarn winding from the cop-tube on thespindle from the base of the cop toward its nose drops off the largercylindrical body of the cop-tube upon the smaller spindle, thus leaving,as it were, a shoulder or oifset in the yarn portion of the cop which isof less diameter than the hole in the cop-tube.

Shuttle-spindles are usually split from near thespindle-head to nearlythe point of the spindle, and the sides are set open or apart, thusmaking an expansible portion to .hold the cop frictionally and preventthe cop sliding on the spindle or from flying off when the shuttle isstopped in the shuttle-box.

In putting a mule-cop such as described 011 a loom-shuttle spindle ofthe kind referred to the spindle, as the cop-tube is pushed into placenear the head of the spindle, acts to stretch the cop of yarn at thatportion thereof where the hole therein is of less diameter than thecop-tube next to it, which cop-tube is supposed to fit theshuttle-spindle, and the 60118 of yarn at the point where the cop is sostretched or expanded become embedded one coil closely into another, sothat when weaving off the cop the thread breaks at this point and thebalance of the what is called waste.

Should the expansion of the spindle next the inner end of the cop-tubebe so little as not to stretch the cop of yarn injuriously, as stated,but leave the yarn free to run off for weaving, then the cop-tube wouldtraverse the spindle endwise when the yarn shall have run ofi to nearthe inner end of the cop-tube and the yarn would be tangled and wouldbreak. In my efforts to overcome these difficulties cop is thrown into.

I have so constructed the spindle as to hold the cop from its nose backto about the longitudinal center of the cop, while from such part of thetop of the inner end of the coptube the spindle exerts but very little,if any, pressure, and to keep the cop in place on and prevent itslipping longitudinally on the spindle when the cop is being unwound toa point back of the largest diameter of the split spindle I haveprovided the spindle with a cop-tube holder, on which the cop-tube isforced, and which alone acts to hold the coptube firmly in place,permitting the yarn to be all woven off. The shuttle-spindle is alsoprovided with a shoulder or projection to form a stop, whereby theextent of movement of the cop-tube toward the head of the spindle islimited, so that when the spindle is turned in the shuttle the usualspring will not strike the cop.

Figure 1 shows a sufficient portion of a shuttle-body, partly brokenout, together with a spindle and cop-tube holder embodying my invention,to enable the same to be understood, the drawing by dotted lines showingnot only the outline of the cop and coptube, but also a portion of thespindle as it will be when raised partly to receive a cop. Fig. 2 inelevation shows the spindle with my improved holder. Figs. 3 and 4 showspindles with modified forms of holders.

The shuttle-body A has a pin, B, on which is pivoted the head a of theshuttle-spindle a, which is retained in either of its two usualpositions by the usual spring, 0.

The spindle a is herein shown as split and bulged to form a spring,which by its inherent expansion holds the cop frictionall y from thecenter of its length to its point on the spindle. Ysually the two halvesof the spindle are so bent that they bow outwardly from near the pointof the spindle nearly to the head of the spindle, the expansion of thespindle at a point opposite the inner end of the cop-tube beingsufficient to hold the latter in place and prevent it slidingon thespindle, and, as stated, this expansion strains the yarn in the cop atand beyond the end of the cop-tube and mats and tightens it together insuch manner as to prevent the free delivery of the yarn as the latter,being unwound, ap proaches the outer end of the cop-tube. hen

the expansion of the spindle is not depended upon to hold the cop-tubein place, I need only to expand the spindle from near itsv point back toa point outside near the inner end of the cop-tube, and consequently thespindle does not stretch outwardly, or injuriously so, the yarn of thecop, but leaves it in its soft-wound condition as taken from themule-spindle. \Vhen the cop and its tube are at first crowded down upona spindle the expansion of which is carried substantially to the head ofthe spindle, the first application of the copto the spindle is not thatwhich stretches the cop injuriously outwardly, for when the cop is offull length it acts on a large part of the spindle; but when the cop isso far unwound that but part of the spindle is inclosed by the cop thenthe spindle gradually expands and gradually stretches the cop more andmore at the end of the coptube, and so draws the coils of yarn together,as stated. To avoid this outward straining of the yarn of the cop nearthe end of the cop-tube, and also the slipping of the cop-' tube on thespindle, I have fixed to the spindle, as herein shown, a cop-tubeholderconsisting, essentially, of aspring or springs, as cl, confined atone end to the spindle.

Preferably the cop-tube holder will be attached" to the spindle at ashort distance from. its head, the inner ends of the springsterminating, as shown in the drawings, at a shoulder or projection, asd, the latter serving as a stop for the cop-tube.

The inner or free ends of the springsofthe holder are embedded in pits,as d formed in the spindle, and for the best results the springs will bein line of the slit in the spindle, as thereby the strain is less onthesprings of the holder; but the springs may be placed' at the sides ofthe spindle, as in Fig. 4.

Fig. 3 shows a modification of my invention in which the cop-tube holderconsists of one spring-arm, d, soldered or otherwise fixed to thespindle next the projection d, shown as a pin inserted into or connectedto the head of the spindle. WVhen the spindle is turned out, aspartially shown by dotted lines, Fig. 1, the end of the spring 0 meetsthe spindle between its head ctand the stop d and does not touch thecop-tube or cop.

I do not desire to limit my invention-to the particular method shown forconfining the holder to the spindle, as the springs may be is not theoperation of the split spindle, for

my improved split spindle is so constructed that the bulge part thereofis not extended back toward the head of the spindle far enough to enterthe cop-tube, but only sufficiently far to hold the front end ofthe-cop, leaving that part of the cop next the end of the cop-tube freefrom any outward expansion Whatever due tothe split or bulge part of thespindle, the holderemployed by me'being of sufficient strength to.effectually prevent the sliding of the cop-tube on the spindle, thefriction between. the cop and cop.-

tube being sufficient to hold the cop' from' longitudinal motion, evenafter themainbody of yarn forming the cop has been sofar-unwound as touncover themost expanded portion of the split spindle.

I claim- 1. The combination, with aloom-shuttle and its split spindletov hold a cop thereon frictionally, of. a spring cop-tubeholderconnected thereto, the said holder receiving upon it the cop-tube andvacting wholly to retain the latter and the yarn, between it and thebulged part of. the spindle from sliding-on thespindle,substantially'as" described. 7

. 2. The shuttle-body, its spring, and the split spindle having, thevshoulder d near its head, combined with. the spring cop-tube holder, thelatter acting to hold thecop-tube,

as described, while the said shoulder: forms a stop for the lower end ofthe cop-tube, substantially as described;

In testimony whereof I have signed myiname to this specification inthepresence of two subscribing witnesses.

JOHN M; CHENEY. Witnesses:

G. W. GREGORY, B. DEWAR.

